A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 6645-00-295-8535
NSN 5920-01-115-1739
NSN 6150-01-400-4211
NSN 5975-01-481-2470
NSN 5985-01-233-7252
NSN 5960-00-932-3067
NSN 5835-01-364-6830
NSN 5895-01-232-8388
NSN 5975-01-449-3083
NSN 6135-00-299-6918
NSN 5999-00-125-4875
NSN 5996-00-960-0103